LIQUID CRYSTAL ALIGNING AGENT, METHOD FOR FORMING LIQUID CRYSTAL ALIGNMENT FILM AND LIQUID CRYSTAL DISPLAY DEVICE

摘要

Disclosed is a liquid crystal aligning agent containing at least one polymer selected from the group consisting of polyamic acids obtained by using diamines represented by the formula (1) below and imidized products of such polyamic acids. (In the formula (1), Ar represents a divalent aromatic group; S1 and S2 independently represent a divalent linking group or a single bond; Y represents a monovalent organic group; Z represents a trivalent organic group; and D1 and D2 independently represent an oxygen atom, a sulfur atom or -NR- (wherein R represents a hydrogen atom or an alkylgroup).)